Seeking refuge here from the inanity of R&N - can anyone help explain to me the transmission system for EHM? It is suggested on the R&N thread that the transmission system is 'independent' of the aircraft ACARS, which does not make much sense to me since the need for data is promoted by the engine being on a functioning aircraft, so why not just use the ACARS system as per nougtsnones' post?
This query is prompted by the report that ACARS was 'disabled' but that some sort of handshake was being initiated by the aircraft for several hours.
I remain highly dubious of some of the 'feeds' to the public, my views on the reliability of the WSJ are well aired on this site too. We could be in danger of circular self-generating unsubstantiated 'facts' set off by mis-reporting.